Summary
We propose to adopt a new airworthiness directive (AD) for the products listed above. This proposed AD results from mandatory continuing airworthiness information (MCAI) issued by an aviation authority of another country to identify and correct an unsafe condition on an aviation product. The MCAI describes the unsafe condition as:
Routine inspections have revealed cracking on the head sections of two Trent 800 front combustion liners.
We are proposing this AD to prevent uncontained engine failure and damage to the airplane.